code: def __init__(self, ctx: Context, params, lr):
      self.ctx = ctx
      self.params = list(params)
      self.lr = lr
  
imports: import typing
  from typing import Any, Iterator
  import torch
  from torch.nn import Parameter
  from fate.arch.context import Context
  from fate.arch.protocol.mpc.common.encoding import IgnoreEncodings
  from fate.arch.protocol.mpc.mpc import FixedPointEncoder
  from fate.arch.trace import auto_trace
label_desc: Use image node_id 1 to create a new SSHENeuralNetworkOptimizerSGD object  with example: obj = SSHENeuralNetworkOptimizerSGD(ctx, params, lr)